emollientsWaxy Solid

Cetyl Dimethicone

Cetyl Dimethicone

Silicone wax providing water resistance and smooth payoff
CAS Number:191044-49-2

INCI Name

Cetyl Dimethicone

Functions

1 Roles

Sustainability

3/10

Category

emollients

What It Does

Cetyl Dimethicone is a high molecular weight alkyl-modified silicone that combines the slip and spreadability of dimethicone with the substantivity and water-repellency of a long-chain cetyl (C16) alkyl group. This modification creates a waxy solid at room temperature that melts on skin contact, making it particularly valuable in long-wear makeup formulations, water-resistant sunscreens, and conditioning hair products where enhanced adhesion and film-forming properties are desired. Formulators choose it over standard dimethicones when they need improved water resistance, longer-lasting effects, and a more substantial, cushiony skin feel without the heavy or greasy sensation of traditional waxes.

Enhances formula performance
Contributes to product quality
Supports formulation goals
Improves user experience

Technical Properties

Ionic Charge

nonionic

Molecular charge type

Viscosity Effect

thickening

Impact on formula thickness

Foaming Ability

none

Lather generation

Ingredient Compatibility

Works Well With

other siliconeshydrocarbon oilsestersnonionic emulsifiersmost emollientslipophilic actives

Avoid Combining

highly polar solventsstrong acidsstrong basescationic polymers at high concentrations
Compatibility analysis powered by OpenMix — open-source formulation science

Sustainability Profile

Sustainability Score

3/10

Biodegradability

not readily biodegradable

Source

synthetic

Feedstock

silica and petroleum-derived hydrocarbons

Quick Reference

Full INCI Name
Cetyl Dimethicone
Common Name
Cetyl Dimethicone
CAS Number
191044-49-2
Category
emollients

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Cetyl Dimethicone (Cetyl Dimethicone) - Silicone wax providing water resistance and smooth payoff | Genie Ingredient Database